Port v2 site content to Nuxt rewrite

[mdcfe]

• Homepage
  • Replace Buefy placeholders with actual content
• Wiki
  • Layout
  • Content display
  • Search
  • Images
  • Less padding around quote blocks
  • Linkout icon for nav menu
  • Sync wiki submodule
• Community page (split)
  • Support page
  • Donate/contribute page
• Downloads
  • Improve icons
• Page footer
  • Replace temporary footer
• Discord auth page
• Dump viewer